/*验证码 开始 */
/*生成4位随机数*/
function rand() {
        var str = "abcdefghijklmnopqrstuvwxyz0123456789";
        var arr = str.split("");
        var validate = "";
        var ranNum;
        for (var i = 0; i < 4; i++) {
                ranNum = Math.floor(Math.random() * 36); //随机数在[0,35]之间
                validate += arr[ranNum];
        }
        return validate;
}

/*干扰线的随机x坐标值*/
function lineX() {
        var ranLineX = Math.floor(Math.random() * 90);
        return ranLineX;
}

/*干扰线的随机y坐标值*/
function lineY() {
        var ranLineY = Math.floor(Math.random() * 40);
        return ranLineY;
}
var imgconfig = {
        code: ""
};
function clickChange() {
        var mycanvas = document.getElementById("mycanvas");
        var cxt = mycanvas.getContext("2d");
        cxt.fillStyle = "#fff";
        cxt.fillRect(0, 0, 90, 40);

        /*生成干扰线20条*/
        for (var j = 0; j < 20; j++) {
                cxt.strokeStyle = "#fff";
                cxt.beginPath(); //若省略beginPath，则每点击一次验证码会累积干扰线的条数
                cxt.moveTo(lineX(), lineY());
                cxt.lineTo(lineX(), lineY());
                cxt.lineWidth = 0.5;
                cxt.closePath();
                cxt.stroke();
        }

        cxt.fillStyle = "red";
        cxt.font = "bold 20px Arial";
        imgconfig.code = rand().toLocaleLowerCase();
        cxt.fillText(imgconfig.code, 25, 25); //把rand()生成的随机数文本填充到canvas中
}
/*验证码 结束 */
/* md5加密 */
/* eslint-disable */
function md5(string) {
        function md5_RotateLeft(lValue, iShiftBits) {
                return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
        }
        function md5_AddUnsigned(lX, lY) {
                var lX4, lY4, lX8, lY8, lResult;
                lX8 = (lX & 0x80000000);
                lY8 = (lY & 0x80000000);
                lX4 = (lX & 0x40000000);
                lY4 = (lY & 0x40000000);
                lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
                if (lX4 & lY4) {
                        return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
                }
                if (lX4 | lY4) {
                        if (lResult & 0x40000000) {
                                return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
                        } else {
                                return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
                        }
                } else {
                        return (lResult ^ lX8 ^ lY8);
                }
        }
        function md5_F(x, y, z) {
                return (x & y) | ((~x) & z);
        }
        function md5_G(x, y, z) {
                return (x & z) | (y & (~z));
        }
        function md5_H(x, y, z) {
                return (x ^ y ^ z);
        }
        function md5_I(x, y, z) {
                return (y ^ (x | (~z)));
        }
        function md5_FF(a, b, c, d, x, s, ac) {
                a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_F(b, c, d), x), ac));
                return md5_AddUnsigned(md5_RotateLeft(a, s), b);
        };
        function md5_GG(a, b, c, d, x, s, ac) {
                a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_G(b, c, d), x), ac));
                return md5_AddUnsigned(md5_RotateLeft(a, s), b);
        };
        function md5_HH(a, b, c, d, x, s, ac) {
                a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_H(b, c, d), x), ac));
                return md5_AddUnsigned(md5_RotateLeft(a, s), b);
        };
        function md5_II(a, b, c, d, x, s, ac) {
                a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_I(b, c, d), x), ac));
                return md5_AddUnsigned(md5_RotateLeft(a, s), b);
        };
        function md5_ConvertToWordArray(string) {
                var lWordCount;
                var lMessageLength = string.length;
                var lNumberOfWords_temp1 = lMessageLength + 8;
                var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64;
                var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;
                var lWordArray = Array(lNumberOfWords - 1);
                var lBytePosition = 0;
                var lByteCount = 0;
                while (lByteCount < lMessageLength) {
                        lWordCount = (lByteCount - (lByteCount % 4)) / 4;
                        lBytePosition = (lByteCount % 4) * 8;
                        lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
                        lByteCount++;
                }
                lWordCount = (lByteCount - (lByteCount % 4)) / 4;
                lBytePosition = (lByteCount % 4) * 8;
                lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
                lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
                lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
                return lWordArray;
        };
        function md5_WordToHex(lValue) {
                var WordToHexValue = "", WordToHexValue_temp = "", lByte, lCount;
                for (lCount = 0; lCount <= 3; lCount++) {
                        lByte = (lValue >>> (lCount * 8)) & 255;
                        WordToHexValue_temp = "0" + lByte.toString(16);
                        WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2);
                }
                return WordToHexValue;
        };
        function md5_Utf8Encode(string) {
                string = string.replace(/\r\n/g, "\n");
                var utftext = "";
                for (var n = 0; n < string.length; n++) {
                        var c = string.charCodeAt(n);
                        if (c < 128) {
                                utftext += String.fromCharCode(c);
                        } else if ((c > 127) && (c < 2048)) {
                                utftext += String.fromCharCode((c >> 6) | 192);
                                utftext += String.fromCharCode((c & 63) | 128);
                        } else {
                                utftext += String.fromCharCode((c >> 12) | 224);
                                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                                utftext += String.fromCharCode((c & 63) | 128);
                        }
                }
                return utftext;
        };
        var x = Array();
        var k, AA, BB, CC, DD, a, b, c, d;
        var S11 = 7, S12 = 12, S13 = 17, S14 = 22;
        var S21 = 5, S22 = 9, S23 = 14, S24 = 20;
        var S31 = 4, S32 = 11, S33 = 16, S34 = 23;
        var S41 = 6, S42 = 10, S43 = 15, S44 = 21;
        string = md5_Utf8Encode(string);
        x = md5_ConvertToWordArray(string);
        a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
        for (k = 0; k < x.length; k += 16) {
                AA = a; BB = b; CC = c; DD = d;
                a = md5_FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
                d = md5_FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
                c = md5_FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
                b = md5_FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
                a = md5_FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
                d = md5_FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
                c = md5_FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
                b = md5_FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
                a = md5_FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
                d = md5_FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
                c = md5_FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
                b = md5_FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
                a = md5_FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
                d = md5_FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
                c = md5_FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
                b = md5_FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
                a = md5_GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
                d = md5_GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
                c = md5_GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
                b = md5_GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
                a = md5_GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
                d = md5_GG(d, a, b, c, x[k + 10], S22, 0x2441453);
                c = md5_GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
                b = md5_GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
                a = md5_GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
                d = md5_GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
                c = md5_GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
                b = md5_GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
                a = md5_GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
                d = md5_GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
                c = md5_GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
                b = md5_GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
                a = md5_HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
                d = md5_HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
                c = md5_HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
                b = md5_HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
                a = md5_HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
                d = md5_HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
                c = md5_HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
                b = md5_HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
                a = md5_HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
                d = md5_HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
                c = md5_HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
                b = md5_HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
                a = md5_HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
                d = md5_HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
                c = md5_HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
                b = md5_HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
                a = md5_II(a, b, c, d, x[k + 0], S41, 0xF4292244);
                d = md5_II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
                c = md5_II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
                b = md5_II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
                a = md5_II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
                d = md5_II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
                c = md5_II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
                b = md5_II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
                a = md5_II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
                d = md5_II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
                c = md5_II(c, d, a, b, x[k + 6], S43, 0xA3014314);
                b = md5_II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
                a = md5_II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
                d = md5_II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
                c = md5_II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
                b = md5_II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
                a = md5_AddUnsigned(a, AA);
                b = md5_AddUnsigned(b, BB);
                c = md5_AddUnsigned(c, CC);
                d = md5_AddUnsigned(d, DD);
        }
        return (md5_WordToHex(a) + md5_WordToHex(b) + md5_WordToHex(c) + md5_WordToHex(d)).toLowerCase();
}

/*本地存储*/
function setStore(n, v) {
        window.localStorage.setItem(n, v);
}
function getStore(n) {
        return window.localStorage.getItem(n);
}
function hsetStore(n, v) {
        window.sessionStorage.setItem(n, v);
}
function hgetStore(n) {
        return window.sessionStorage.getItem(n);
}


/*数组 */
/**
 * 
 * @param {*} v 删除的值
 * @param {*} n 删除的长度
 */
Array.prototype.hsplice = function (v,n) { 
        var arr=this;
        var i=arr.indexOf(v);
        return arr.splice(i, n);
};